Jean François-Poncet (; 8 December 1928 – 18 July 2012) was a French politician and diplomat who served as Minister of Foreign Affairs under President Valéry Giscard d'Estaing from 1978 to 1981. From 1983 until 2011, he was a member of the Senate for Lot-et-Garonne.
François-Poncet had served as a diplomat in the government in the 1950s and 1960s. "Entering politics in 1967, he was elected in Lot-et-Garonne, as [a] member of the general council". François-Poncet was CEO of Carnaud SA, a packaging business, from 1971 to 1974. He returned to government service in 1974 when President Valéry Giscard d'Estaing appointed François-Poncet secretary of state at the Ministry of Foreign Affairs. In 1976 President Giscard d'Estaing appointed François-Poncet Secretary General in the Office of the President, "a key post in French politics". In 1978 d'Estaing appointed François-Poncet Minister of Foreign Affairs. He held the latter position until 1981. François-Poncet was also a graduate of the École nationale d'administration.
He died, aged 83, in Paris, France.
He was the son of André François-Poncet, also a French politician and diplomat, whose diplomatic post as French Ambassador to Germany allowed him to witness the rise to power of Adolf Hitler and the Nazi Party, as well as the Third Reich's preparations for war.